Minn. Stat. § 270.48
The board may license persons as possessing the necessary qualifications of an assessing official. Different levels of licensure may be established as to classes of property which assessors may be certified to assess at the discretion of the board. Every person, except a local or county assessor, regularly employed by the assessor to assist in making decisions regarding valuing and classifying property for assessment purposes must become licensed within three years of the date of employment. Licensure shall be required for local and county assessors as provided in sections 270.50 and 273.061, and rules adopted by the board.
Minn. Stat. § 270.48
Ex1971 c 31 art 25 s 8; 1975 c 339 s 3; 1976 c 222 s 135; 1986 c 444; 1995 c 264 art 16 s 2; 2008 c 154 art 13 s 18